The anti-malarial drug Chloroquine was widely used until recent years when the malaria parasite became resistant to the drug.

VOA: special.2010.04.20

One sign of hope is a new way to make the natural defenses of mosquitoes resistant to the Plasmodium parasite.

VOA: special.2010.04.20

It would also depend on the building materials used since some materials are less resistant to heat than others.

VOA: special.2010.03.02

During the last flu season, twelve percent of H1N1 viruses tested in the United States were resistant to Tamiflu.

VOA: special.2009.03.04

One of the most important things is to identify cases quickly -- especially drug-resistant cases, which are increasing.

VOA: special.2009.03.25

Evidence is increasing that common influenza viruses are becoming resistant to the main drug used to treat them.

VOA: special.2009.03.04

Extensively drug-resistant tuberculosis, or XDR-TB, will not respond to any of those drugs but might still be treatable.

VOA: special.2009.03.25

Investigators blamed the destruction on the poor quality of many buildings and a lack of earthquake-resistant structures.

VOA: special.2011.01.04

But it warns that mosquitoes are becoming increasingly resistant to pesticides, the products used to kill insects.

VOA: special.2009.05.26

The team also tested the insect material on methicillin-resistant staphylococcus aureus, also known as the disease MRSA.

VOA: special.2010.12.07

This method might be used to help engineer food crops that are resistant to extremely dry conditions.

VOA: special.2010.01.26

Malaria can be treated, but in many areas the parasites have become resistant to different drugs.

VOA: special.2009.12.07

He is working to develop disease-resistant plants, but he says it will probably take five years.

VOA: special.2010.06.08

Malaria can be treated, but in many areas the organisms have become resistant to different drugs.

VOA: special.2009.12.22

The scientists say virus-resistant transgenic squash are grown throughout the United States and much of Mexico.

VOA: special.2009.10.27

This was done by crossbreeding different kinds of wheat to make stronger, more resistant ones.

VOA: special.2009.11.10

The seeds of this drought-resistant plant can be boiled for eating or for making flour.

VOA: special.2010.02.09

Multidrug resistant tuberculosis,or MDR-TB, will not get better with antibiotics normally used for tuberculosis.

VOA: special.2009.03.25

That finding led to the development of seeds resistant to both Striga and drought.

VOA: special.2009.06.16

Also,make sure outerwear is made of material that is water resistant and tightly knit.

VOA: special.2009.12.23

Miz Kwolek needed a new way to make stiff, resistant fibers for the job.

VOA: special.2010.02.09

Now,researchers say they have found a much faster way to identify drug-resistant TB.

VOA: special.2009.03.25